Physiological uptake of 18F-FDG in the vertebral bone marrow in healthy adults on PET/CT imaging

Background 18F-fluorodeoxyglucose *Equal contributors. positron emission tomography/computed tomography (18F-FDG PET/CT) has proven to be a valuable imaging modality for the assessment of bone marrow condition. Purpose To investigate the physiological uptake of 18F-FDG in the vertebral bone marrow in healthy adults on PET/CT imaging, and correlate the appearance with clinical factors including gender, body mass index, and age. Material and Methods A total of 64 healthy individuals underwent PET/CT scan, and for each vertebral body, the mean and maximum standardized uptake value (SUVmean and SUVmax) were determined in the central slice of vertebral body on the transversal fused PET/CT image. For each individual, the FDG uptake of the four regions was obtained by averaging the SUVmean and SUVmax of the vertebrae in individual regions. Results The FDG uptake from thoracic to sacral vertebrae showed an upward trend first, then a downward trend, while that of cervical vertebrae was relatively stable. The SUVmax and SUVmean values of bone marrow in the old group (age ≥ 50 years) were significantly lower than those in the young group (age < 50 years) in all regions of the spine ( P < 0.05). FDG uptake of the whole spine showed significant negative correlation with age, and the strongest correlation was observed in lumbar spine (SUVmean: r = −0.364, P < 0.05; SUVmax: r = −0.344, P < 0.05). Conclusion FDG uptake showed a tendency to increase first then decrease from thoracic to sacral vertebrae while the tendency was not obvious in cervical vertebrae. In addition, the glycolytic metabolism of all the four regions decreased with advancing age.

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Characteristics and Clinical Value of 18F-FDG PET/CT in the Management of Adult-Onset Still’s Disease: 35 Cases

Journal of Clinical Medicine ◽

10.3390/jcm10112489 ◽

2021 ◽

Vol 10 (11) ◽

pp. 2489

Author(s):

Josselin Brisset ◽

Yvan Jamilloux ◽

Stephanie Dumonteil ◽

Guillaume Lades ◽

Martin Killian ◽

...

Keyword(s):

Bone Marrow ◽

Lymph Node ◽

Differential Diagnoses ◽

Adult Onset Still’S Disease ◽

Still’S Disease ◽

Clinical Value ◽

Fdg Uptake ◽

Pet Ct ◽

18F Fdg ◽

Adult Onset Still's Disease

While the diagnosis of adult-onset Still’s disease (AOSD) involves the exclusion of differential diagnoses, the characteristics and value of 18F-Fluorodeoxyglucose (18F-FDG) Positron Emission Tomography coupled with CT (PET/CT) in the management of AOSD remain poorly known. Our retrospective study included patients from four centers, fulfilling Yamaguchi or Fautrel criteria, who underwent a PET/CT during an active AOSD. Thirty-five patients were included. At the time of PET/CT, the Yamaguchi criteria were met in 23 of 29 evaluable cases. PET/CT showed bone marrow (74.3%), lymph node (74.3%), and splenic (48.6%) FDG uptake. Despite arthralgia or arthritis in most patients, joints were rarely the sites of 18F-FDG accumulation. The spatial distribution of 18F-FDG uptake was nonspecific, and its intensity could be similar to malignant disease. Lymph node or bone marrow biopsy was performed after PET/CT in 20 patients (57.1%). The intensity of bone marrow; splenic and lymph node hypermetabolism appeared to be correlated with disease activity. Abnormal PET/CT in the cervical lymph nodes and age ≥ 60 years seemed to be predictive factors for monocyclic evolution. The clinical value of PET/CT is not in direct diagnosis; but as an aid in excluding differential diagnoses by searching for their scintigraphic features and guiding biopsy.

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Quantitative, Dynamic 18F-FDG PET/CT in Monitoring of Smoldering Myeloma: A Case Report

Diagnostics ◽

10.3390/diagnostics11040649 ◽

2021 ◽

Vol 11 (4) ◽

pp. 649

Author(s):

Christos Sachpekidis ◽

Matthias Türk ◽

Antonia Dimitrakopoulou-Strauss

Keyword(s):

Bone Marrow ◽

Plasma Cells ◽

Autologous Transplantation ◽

Standardized Uptake Value ◽

Focal Lesions ◽

Fdg Uptake ◽

Pet Ct ◽

18F Fdg ◽

Smoldering Myeloma

We report on a 52-year-old patient with an initial diagnosis of smoldering myeloma (SMM), who was monitored by means of dynamic and static positron emission tomography/computed tomography (PET/CT) with the radiotracer 1⁸F-fluorodeoxyglucose (18F-FDG). Baseline PET/CT revealed no pathological signs. Six months later, a transition to symptomatic, multiple myeloma (MM) was diagnosed. The transition was not accompanied by focal, hypermetabolic lesions on PET/CT. However, a diffusely increased 18F-FDG uptake in the bone marrow, accompanied by a marked increase of semi-quantitative (standardized uptake value, SUV) and quantitative, pharmacokinetic 18F-FDG parameters, was demonstrated. After successful treatment, including tandem autologous transplantation, the diffuse uptake in the bone marrow as well as the semi-quantitative and quantitative parameters showed a marked remission. This response was also confirmed by the clinical follow-up of the patient. These findings suggest that in MM a diffuse 18F-FDG uptake in the bone marrow may indeed reflect an actual bone marrow infiltration by plasma cells. Moreover, SUV values and kinetic parameters, not only from myeloma lesions but also from random bone marrow samples, may be used for MM monitoring. This could be particularly helpful in the follow-up of myeloma patients negative for 18F-FDG-avid focal lesions.

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Focal 18F-FDG uptake in bone marrow on PET/CT in a patient with JAK2 mutation without overt myeloproliferative neoplasm

International Journal of Hematology ◽

10.1007/s12185-013-1473-y ◽

2013 ◽

Vol 99 (1) ◽

pp. 1-3 ◽

Cited By ~ 3

Author(s):

Akihito Fujimi ◽

Yuji Kanisawa ◽

Shinya Minami ◽

Yusuke Kamihara ◽

Sari Iwasaki

Keyword(s):

Bone Marrow ◽

Myeloproliferative Neoplasm ◽

Jak2 Mutation ◽

Fdg Uptake ◽

Pet Ct ◽

18F Fdg

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Vertebral bone marrow glucose uptake is inversely associated with bone marrow fat in diabetic and healthy pigs: [18F]FDG-PET and MRI study

Bone ◽

10.1016/j.bone.2013.12.022 ◽

2014 ◽

Vol 61 ◽

pp. 33-38 ◽

Cited By ~ 15

Author(s):

Ville Huovinen ◽

Virva Saunavaara ◽

Riku Kiviranta ◽

Miikka Tarkia ◽

Henri Honka ◽

...

Keyword(s):

Bone Marrow ◽

Glucose Uptake ◽

Fdg Pet ◽

Marrow Fat ◽

Vertebral Bone ◽

Bone Marrow Fat ◽

Vertebral Bone Marrow ◽

18F Fdg ◽

Mri Study

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Diffusely Increased Bone Marrow 18F-FDG Uptake Is an Independent Predictor of Focal Bone Lesions in Patients with Newly Diagnosed Classical Hodgkin Lymphoma

Blood ◽

10.1182/blood.v124.21.5360.5360 ◽

2014 ◽

Vol 124 (21) ◽

pp. 5360-5360

Author(s):

Lars C. Gormsen ◽

Cecilia Wassberg ◽

Daniel Molin ◽

Peter Kamper ◽

Gunilla Enblad ◽

...

Keyword(s):

Bone Marrow ◽

Logistic Regression ◽

Independent Predictor ◽

Bone Lesions ◽

Classical Hodgkin Lymphoma ◽

Fdg Uptake ◽

Pet Ct ◽

18F Fdg ◽

The Relationship ◽

Initial Staging

Abstract Background: 18F-FDG PET/CT is recommended in the initial staging of patients with classical Hodgkin lymphoma (cHL). Whereas focal 18F-FDG uptake in the skeleton is considered to represent bone involvement, it is still unclear whether diffusely increased 18F-FDG bone marrow uptake (BMU) indicates lymphoma infiltration or merely reflects a state of general inflammation. This retrospective study was therefore performed to study the relationship between pre-therapeutic (PET0) 18F-FDG BMU and the presence of focal bone lesions. Methods: A total of 139 patients (median age 44, range 8-83) referred to PET/CT between 2008 and 2014 for HL staging were included. All PET0 and post-therapeutic (PET2) images were reviewed and evidence of focal bone lesions was recorded (unifocal: ≤2 lesions, multifocal: >2 lesions). In addition, 18F-FDG uptake (SUVmax) was semiquantitatively measured in the vertebral bone marrow (SUVvertebra) and in the right lobe of the liver (SUVliver). BMU was calculated as SUVvertebra/SUVliver. The relationship between focal bone lesions on PET0 and BMU as well as age was subsequently analysed by logistic regression. Results: In total 30/139 (22 %) patients had focal bone lesions at initial staging (10 unifocal, 20 multifocal). BMU at initial presentation was generally increased in all patients when compared with the post-therapeutic PET/CT (PET0: 1.22 +/- 0.03 vs. PET2: 0.95 +/- 0.03, p<0.001). In a logistic regression model diffusely increased BMU at PET0 (p=0.01) as well as age (p=0.01) were both independent predictors of focal bone lesions. Conclusion: Diffusely increased 18F-FDG uptake is an independent predictor of skeletal bone lesions in patients with HL. Evidence of increased BMU might be evaluated as an additional outcome predictor in the pre-therapeutic risk assessment of patients with HL. With the purpose of validating these findings, we will analyze an independent cohort of Swedish cHL patients and joined data from both cohorts will be presented at the meeting. Disclosures No relevant conflicts of interest to declare.

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Vertebral bone marrow diffusivity in healthy adults at 3T diffusion-weighted imaging

Acta Radiologica ◽

10.1177/0284185116641346 ◽

2016 ◽

Vol 57 (10) ◽

pp. 1238-1243 ◽

Cited By ~ 5

Author(s):

He Jie ◽

Fang Hao ◽

Li Xiao Na

Keyword(s):

Bone Marrow ◽

Diffusion Weighted Imaging ◽

Healthy Adults ◽

Vertebral Bone ◽

Diffusion Weighted ◽

Vertebral Bone Marrow

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Age- and sex-related differences in vertebral bone marrow fat content in healthy adults from east China

10.21203/rs.2.21093/v1 ◽

2020 ◽

Author(s):

qingping Li ◽

shaoqing Chen ◽

panpan Zhou ◽

anna Guo ◽

peipei Ye ◽

...

Keyword(s):

Bone Marrow ◽

Age Groups ◽

Fat Content ◽

Healthy Adults ◽

Marrow Fat ◽

Men And Women ◽

Vertebral Bone ◽

Bone Marrow Fat ◽

Fat Composition ◽

Vertebral Bone Marrow

Abstract Background Bone-marrow water–fat composition is a useful imaging biomarker. However, the vertebral bone-marrow fat composition in healthy adults of east China is unknown. The aim of this study was to investigate differences in lumbar vertebral bone-marrow fat content between the sexes with age, using iterative decomposition of water and fat with echo asymmetry and least-squares estimation quantitation (IDEAL-IQ). Methods Three-hundred-and-twenty-one healthy volunteers (age range 20–29 years: 32/33 men/women; 30–39 years: 40/37; 40–49 years: 21/45; 50–59 years: 26/37; ≥ 60 years: 15/26) were included in the present study. All subjects underwent IDEAL-IQ sequence imaging on a 3.0-T MR scanner. Bone-marrow fat-fraction ratio (FF%) was calculated for each vertebral body from sagittal lumbar images. Men and women were compared within age-groups by independent-samples t -tests, and different age-groups and vertebral segments were compared by Bonferroni post-hoc test. FF% correlations with age and body mass index (BMI) were analyzed with Spearman’s correlation coefficient. FF% and vertebral segment correlations were assessed by partial correlation analysis, after adjustment for sex and age. Results FF% averaged over L1–L5 was significantly higher in men than in women for the < 40-year age-groups ( P = 0.000). Bone-marrow fatty conversion was accelerated in women compared to men aged 40–49 years, but was similar in women and men aged > 60 years ( P > 0.05). FF% correlation with age was weakly positive in men ( r = 0.253, P = 0.003), and moderately positive in women ( r = 0.581, P < 0.001), but was non-significantly correlated with BMI and vertebral segments ( r = 0.218; r = 0.187, respectively). FF% was higher in the lower than in the upper lumbar segments ( P < 0.05). Conclusion IDEAL-IQ can accurately quantify lumbar bone-marrow fat infiltration. This increases with age, and differs between men and women and between lower and upper lumbar segments.

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